What does marketing SMS occupancy caliber mean?

It means to send marketing text messages to prompt customers to book hotels and count the number of people who finally stayed. "Marketing SMS" is a marketing tool in the hotel service industry. "Caliber" means statistics. This caliber is usually one of the important indicators used by the hotel marketing department to measure the effectiveness of marketing activities. So the meaning of this sentence is to use the method of sending marketing text messages to encourage customers to book a hotel, and count the number of people who finally check in, so as to judge the effectiveness of the hotel marketing department in measuring marketing activities.